I'm currently working around Project Navigator in AutoCAD Architecture 2015. Lately, my autocad tend to crash quite often, average twice to 3 times a day. Also I realized that if I recover a dwg from the project and a normal dwg when autocad crashes, both file switches. Example: I have A.dwg and B.dwg, when I recover both files when autocad crashes, A.dwg will be everything from B.dwg, and B.dwg will be all A.dwg. Is this a problem only I am experiencing or is this a common issue?